Hey,

M.Sc. in Bio-Chemistry: Candidates must have completed B.Sc. Part III Examination with Chemistry/ Biochemistry as one of the subject and Botany/ Physiology / Zoology / Biotechnology / Microbiology/Industrial Fish and Fisheries as the other subject, or

Candidates must have completed B.Sc. (Honours) Examination with Chemistry / Biochemistry / Botany / Physiology / Zoology / Biotechnology/Microbiology as the main/subsidiary subject (Chemistry/Biochemistry being preferably the main subject)

M.Sc. in Agricultural Science (Agricultural Botany/Agricultural Chemistry & Soil Science/Agricultural Zoology & Entomology) : Candidates must have completed the B.Sc. (Agriculture) Examination (Four-Year Course).

For more information regarding pg admissions in au visit teh following website- 

https://university.careers360.com/articles/allahabad-university-application-form

Hope this helps.